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To all whom i t' m ay concern mm sr ras PAT T OFFICE.

THOMAS MU GA ROY JRA SMIEL'HVILLE, CANADA wEs'r.

cARRIAe -srnme.

Specification of Letters Patent No. 12,764, dated April 24, 1855. I

Be it known that I, THoMAs MURoATRoYD, J r.,"of Smithville, inthedistrict of Niagara .jand Province of Canada West, have invented a newand :useful Improvement in Carriage-Springs; andI do hereby declare thatthe following is a full, clear, and exact description of the same,reference being had to the annexed drawings, making a part of n thisspecification,in which M Figures land 2 are front views of myimprovement. Fig. 3, is a longitudinal vertical section of ditto, theplane of section being through the center. Fig. 4, is an inverted planof ditto.

Similar letters of reference indicate corresponding parts in the severalfigures.

. 1 This invention relates to a new and useful improvement in carriagesprings, and con-.

sists in the peculiar arrangement 1 of the springs and the manner inwhich they are connected or applied to the vehicle.

To enable others skilled in the art to fully understand and construct myinvention, I

will proceed to describe it.

A, A, represent thesprings, two at the front part of the vehicle and twoat the back part. These springs are of curvedor bo-w form, similar tothe upper half of the ordinary eliptic spring. TheCsprings are placedone over the other at the front and back of the vehicle as shown inFigs. 1 and 2, and

the springs are of suflicient length to extend as far as the arms (a) ofthe axles B, of the wheels; The upper springs A, are connected at theirendsby links (19) to the upper ends of rods ('0) which are attached'tothe upper surfaces of thearms and the lower springs A, have their endsconnected by 40 links (d) to eyes (e) which project down- Ward from theundersurfaces of the arms, see Figs. 1 and 2. .Between each pair ofsprings A, A, thereisa stay or red C, as

i shown in Figs. 1,2 and 3. To the upper surcenters the' usual bolsters(f8 and upon which the body F,

faces of the upper springs A, atabout their are secured the bottom ofwhich is only. show) of the vehicle rests. Betweenthe bolster andbodyof. the vehicle at the frontpart of the vehicle a, fifth wheel D, isa brace the ends of which are connected to the front and back axles. Theback part of the brace is forked, see Fig. 4, and the prongs (h) (71)are connected near the ends of the back axle but the front end of thebrace is connected to the front axle by a bolt or pivot (2') shown inall the figures.

E, E, are braces which are connected to the lower springs A, and to thecenter of the body F, underneath by a pivot (j) as shown in Figs. 3 and4. The front brace E, is allowed to move or turn slightly on the pivot(j).

By the above improvement the weight of the vehicle or rather the bodyand its load rests equally upon both springs A, A, as they areconnectedby the stays or rods G, C, and the thrust of the springs andthe Weight of the load bears upon the arms (0) of the axles B, no weightbearing upon the centers of the axles. All the strain that the axles aresubjected to is lateral, caused by the thrust of the springs, the arms(0) sustaining the weight of the load.

I am enabled by the above improvement to use long springs extending thewhole length of the axles and the springs are therefore suflicientlyelastic to yield or give so that if either of the wheels is suddenlydepressed orraised in passing over obstructions or into holes in theroad the load and body of the vehicle will not be moved out of itsproper position the springs yielding sufficiently to prevent this, seeFig. 2, in which one end of the springs and axle is raised. The springsalso are prevented from being moved or wrenched forward or backward bythe braces E, E, which also form a support to the body F, and the braceD, supports or keeps in proper position the axles B, B.

The above improvement can be made and applied to vehicles in about onethird the time required for the manufacture of the (ordinary springs andapplying or attaching them. to} vehicles, one third less weight of metalis required and superior strength and durability is obtained, and theexpense of construction is about one third less than I claim as new anddesire to secure by Leting also braced to prevent a, forward and tersPatent, is--' backward motion of the same and the axles in Theemployment or use of the springs A, B, being supported or braced by therod or A, attached to the arms (a) of the axles bmee D, as herein shownand described.

5 B, B, by links 5, d, the links (6) being THOMAS MURGATROYD, JR.

above, and the links (d) below the arms of Witnesses: the a xle, the tWosprings A, A, being con- S. H. 'WALEs,

neeted by stays or rods C. The springs be- I. G. MASON.

